Work Item
ASTM WK71480

New Test Method for Open-Hole Compressive Strength of Sandwich Constructions

1. Scope

The Committee will develop standard test methods, practices, terminology, and guides; sponsor symposia; stimulate research; and exchange technical information pertaining to composite materials (primarily those with fibrous reinforcement), as well as to reinforcing fibers with a Young's modulus greater than 20 GPa (3x10(6) psi).

This Committee will develop standard specifications for composite materials used in civil structures under Subcommittee D30.10. Other subcommittees under this Committee will not develop standard specifications. All other subcommittees shall be unclassified, as they do not develop standard specifications.

The work of this Committee will be coordinated with other ASTM committees and other organizations having mutual interest.

Keywords

composite materials; sandwich composites; sandwich construction; open-hole compressive strength; compression testing

Rationale

The proposed test method is used to determine the open-hole (notched) strength of a composite sandwich panel. Results may be used for structural design allowables, material specifications, research and development, and quality assurance. it is common aerospace practice to use the notched strength results from this test method to account for various stress concentrations (fastener holes, free edges, flaws, damage, and so forth) not explicitly modeled in stress analyses. Note that this proposed test method is analogous to ASTM D6484, an existing standard test method for open-hole compressive strength of polymer matrix composite laminates. However the proposed test method is to be used for sandwich composites.

The title and scope are in draft form and are under development within this ASTM Committee.

Details

Developed by Subcommittee: D30.09

Committee: D30

Staff Manager: Melissa Marcinowski

Work Item Status

Date Initiated: 01-19-2020

Technical Contact: Daniel Adams

Item: 001

Ballot: D30.09 (20-01)

Status: Will Reballot Item

Item: 010

Ballot: D30 (22-01)

Status: Negative Votes Need Resolution